Bitsbox's aim command rotates a stamp to point towards the coordinates you give it.
Here's a program that aims a rocket at wherever you drag on the screen.
Here's a program that aims text. Note that it will usually make more sense if you CENTER-align the text.
While there won't be any visible difference, you can also aim a circle. This is useful for controlling the direction you want to have a circle move. Here's an example: